chace



(No Model.) V 2 Sheets-Sheet 1..

- A. P. CHASE.

WATER MOTOR.

-4 QPatenoed Dec. 3, 1889.

lllll Il lll lll WITN 55555:

N. wetens mmmnagnpm. wmsngwn. meA

y UNITED STATES PATENT OFFICE.-

ALBERT F. CHACE, OF BOSTON, MASSACHUSETTS, ASSIGINOR OF ONE-HALF, BYMESNE ASSIGNMENTS, TO LEE E. S. PERKINS AND EDIVIN I-I. BUZZELL,

BOTH OF SAME PLACE.

WATER-MOTO R.

SPECIFICATION refining pere ef Letters Patent No. 416,667, datedDecember s, i889.

Y Application filed April 9, 1889. Serial No. 306,525. (No model.)

T all whom. it may concern:

Be -it known that I,'ALBERT F. CHACE, of Boston, in the county ofSuffolk and State of Massachusetts, have invented certain new and usefulImprovements in Tater-Motors,

of which the following is a specification.

My invention relates to motors adapted to be 'Operated by the ebb 'andflow of water-as, `for instance, by the tides of the ocean or by ro therise and fall of water artificially occasioned. Y

It is the object of my invention to'provide a motor of the naturementioned, whereby the maximum buoyant force of the water employed maybe utilized and the motor operated at a uniform rate of speed.

My invention consists of a motor comprising a chamber or tank, a iioatarranged in said chamber, a pipe communicating with said 2o chamber,whereby Water may be admitted thereto or discharged therefrom atauniform rate, and a gate connected with said pipe, whereby the flow ofwater therethrough may be controlled.

The invention will first vbe fully described in connection with theaccompanying drawings, forming'a part of this specification, of whichdrawings- Figure lis a top plan view of my invention. Fig. 2 is alongitudinal sectional view taken on line 2 2 of Fig. 1.

The same letters of reference designate the same parts or features, asthe 'case may be, in both views.

In carrying out my invention I provide a substantial water-tight chamberor tank a, in' which I place a float of such dimensions as that it mayextend as near as may be practicable to the sides and ends of thechamber.

4o This float I may construct with. an. air-tight compartment b in itslower part and with a weight-boX c on its upper side, so that it may bebuoyed orv raised up as water is admitted to the tank ct and weighted tofall with the water as the latter flows out from the tank,

the Weighting of the iioat being varied in accordance with the quantityand consequent buoyant power of the water and the motive force required.

d designates a pipe aording communica- 5o tion between the exterior Vandinterior of the chamber a at the lower part thereof, by which pipe Watermay be admitted to and discharged from the tank through the connectingbranches e at various points under the lioat, 5 5

so that the latter in its rise and fall may be maintained to all intentsand purposes in a level position.

At a convenient point either inside or outside of the chamber a (in thepresent instance 6o shown on the outside) I construct a well or smallchamber f, communicating with the pipe d, connecting a gate g withthepipe at this point, so that said gate may be readily operated withouthinderance or obstruction from the water. It will be understood that thegate g is of any character suited to opening or closing or partiallyclosing theaperture in the pipe, so as to turn on or shut off the Wateror regulate the amount of How in a 7o rollers h, connected with thefloat and having V-shaped grooves in their peripheries, whichrollersfare adapted to travel on V-shaped, tracks c', connected with thechamber.

j j designate vertically-arranged rack-bars suitably connected at theirlower ends with 8o the float and guided in bearings connected with thetank, which rack-bars extend on opposite sides of horizontal rotaryshaft s, arranged in suitable bearings on the top of the chamber a, thedriving-pulleys 7c k being S 5 keyed on said shaft s.

m m designate gears turning loosely on the shaft s, the rack-bar]`engaging gear m', and bar l7" engaging gear m.

n a designate ratchet-wheels keyed on 9o shaft s, and o o are pawlspivoted, respectively, on the gears m m and engaging the respectiveratchet-wheels n n', holding-pawls p p being provided to prevent theturning vof the ratchet-wheels n n in a direction opposite to that inwhich the pawls o o are adapted to rotate them.

W'ith the construction and arrangement of partsA thus far .described itwill be seen that by` theraising of the'floair the shaft s :willi-bevturned, through the medium of rack-bar 7',

- gear m', pawl o', and ratchet-wheel n', in the direction of the arrow,Fig. 2, turning driving-pulley kin the same direction, pulley k',remaining in -aguiescent stata-since gear mf will-.not beso movedasto-ren'der its-attached' pawl o operative, and that when the iioat islowered rack-barj and its adjuncts will operate to rotate shaft .sandpulley Zain the di-l rection of the arrow, Fig. 2, the pulley 7c -re--maining in a quiescent state. In this way, whether the ioat may rise orfall, one or the other of the'drivingpulleys will .be-rotated-asindicated by said arrow.

q designates beams arranged on the bottom of the chamber a, .uponwhichvthe iioat .mayf-restwhen -at itsjflowest position 'in ,the

chamber, and by which s ai'd float `may be tkeptfrom bearing upon the,pipe d.

.-By this inventionfwater maybe yadlllitted l= to and dischargedf romvthe tank at 4 aV uniform ratefand, asa consequence, operate; the mo- 2 5tor-at a uniform rate of speed. Forexampla ifv the motor should'bearranged. to j be `aetn-` ated by, thel tides of the ocean, itl can beadljustedso as to beoperatedfat' a regularnni- -formrate of.speedwhether theebb oriiowof 30' the tides shall be swift orslow.fInpractice :I close the fgaigSQaS to entirelystop the motor, when thewat-er rises, to yitsfhighestbr nearly highest Apoint ,in the chamber;and when. it is `la1l orA nearly all :discharged fromA the chamber,opening said gate soon after the .water ehangestfromebb toiiiiow orflowto-.ebb,'as1the case rmay be,.so 4as;to

avoidslow running lof the motor at these times, and I have devised-meansto accomplish this opening and closing of 'allegate at 4the timesmentioned automatiC-2511y,th0llgh the --means -herein V'shown areadapted ,toA be l operated by hand only.

1sWith .my improved. motor" I am .enabled to utilize the force ofthetides ofthe ocean or the buoyant *force of Waterwhenever itcan besupplied to frll and beidischarged Afrointhe vchamber ct-intheqoperation of any kind or class of machinery or 'devices Where-amotorof any kind can; be employechthe invention,

. being particularly adapted to the operation .f of dynamoelectricallinachin,es in,l charging storage -1 batteries and in operating otherkinds of electrical machinery, running elevators and cars, loading andunloading vessels and., railway-cars, ,&c.

It is obvious Lthatthe pipe CZ maybe pro- .vided withadditional-dischargelbranches e or -be supplied Awith ffewer. of;s.uchbranches than is shown, and that said branches may terminate at anypoint under the float,`as circumstances may suggest.

It is also obvious that additional rack-bars jj and adj unctive devicesmay be supplied and that other changes -may be f m-'ade in -the formiandarrangement. of L .parts constituting my invention; but such formal ormechanical changes will not be a. material departure from the-nature or.spirit of. .my improvements.

:Having thus Yexplained the ,nature of, my invention `and 1 the mannerim-Wellich' itfmay be,- used, I declare that what Lclaim; is-

4l. A watermotor consisting of a.- chamber .or tank, va float in s aijdV,tank adapted to .frise andfall therein, and apipe t communicating ibetweenl the interionandexteriorothe; tank and having. its dischargeenduextendedun'der said ioat, as setforth.

Y 2. A Water-motorv lcon sisting .of a. chamber or tank, aiioatfin saidtankwadapted torise 'andfall therein, and` a pipe communicating betweenthe interiorand .exterior .of the tank,

said pipe being K provided with i vbraneh discharge-pipes extendingtodifferent points under 'the {ica-t, asset forth.

3. A water-motor eonsistingof a chamber or tank, afloat insaidtank'ladapted torise and fall therein, a pipe communicating betweenthe interior and exterior of the tank, a

,gatel in saidv pipe, ,anda Well connected with' the tank andcommunicating with s aidwgate, .as set forth.

I n testimony whereofl have -signed my name to lthis specificat ion, inthe presence Vof two subscribing witnesses'thisY 5th day of April, A D.1889.

AIiB-ISIRI-IP. GHAQE. Witnesses:

ARTHUR ,W-i CRossLEY, W. GRAMSAY.

